If you've found a legendary/set recipe probably you already noticed that in RoS they require, beside crafting mats, a specific white and a legendary item, so here's a list that I hope save some of your time chossing between saving or salvaging those whites for future crafts.
Note that Superior/Thick white items are usable for crafting too, but grey are NOT usable.
White weapons
- Punyal ( Dagger )
- Suwaiya ( Fist )
- Skullsplitter ( Mace )
- Tsunami Blade ( Sword )
- Tecpatl ( Ceremonial Knife )
- Limb Cleaver ( Mighty Weapon )
- Dire Axe ( Axe )
- Grandfather Flail ( Flail )
- Flesh Render ( 2H Axe )
- Whirlwind Staff ( Daibo )
- Kerykeion ( Staff )
- Persuader ( 2H Mace )
- Steppes Smasher ( 2H Mighty Weapon )
- Oxybeles ( Crossbow )
- Penetrator ( 1H Crossbow )
- Doubleshot ( Bow )
- Diabolic Wand ( Wand )
White armors
- Archon Sash
- Ascended Armor
- Ascended Bracers
- Ascended Crown
- Ascended Faulds
- Ascended Gauntlets
- Ascended Greaves
- Ascended Pauldrons
- Ascended Shield
In addition, here's a guide for the Legendary Crafting Materials with the possible spawns you've to look for[]
Happy hunting! (:
Edit: Quick reference chart if you want to save it